Display module

Abstract

The utility model relates to the technical field of display, and provides a display module which comprises a lamp panel and a first polaroid which are distributed in the first direction, the lamp panel comprises a circuit board and a plurality of lamp beads, the lamp beads are installed on the surface of one side of the circuit board at intervals, and the first polaroid is arranged on the side, close to the lamp beads, of the circuit board in the first direction. A first light diffusion layer is arranged on the surface of the first polaroid, and the projection of the first light diffusion layer in the first direction covers the projections of the lamp beads in the first direction. Light rays emitted by a plurality of lamp beads on the circuit board pass through the first light diffusion layer while passing through the first polaroid; the first light diffusion layer scatters the light rays emitted by the lamp beads serving as the point light sources, so that the light rays are distributed more uniformly and diffused, lamp eyes are faded, the technical problem that the light rays emitted by an existing display module easily form lamp shadows is solved, and the uniform display effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of display technology, in particular to a display module. Background Art

[0002] Existing liquid crystal display panels often use LCD (Liquid Crystal Display) display panel and backlight module to form a display module to achieve display function. Specifically, the LCD display panel is responsible for grayscale control of each sub-pixel of the display image, and the backlight module is responsible for providing the display panel with a light source that meets the display requirements and brightness control.

[0003] Among them, the backlight module is structurally divided into a side-emitting backlight module and a bottom-emitting backlight module. The bottom-emitting backlight module generally includes a point light source, a light guide plate and a diffusion film. The light emitted by the point light source is scattered by the light guide plate and then diffused by the diffusion film to become a surface light source. In order to save the cost of the bottom-emitting backlight module, increase the brightness and meet the limitations of the product structure, the light guide plate is sometimes removed, allowing the light from the point light source to directly shine on the diffusion film, resulting in light eyes in the display module. Utility Model Content

[0004] The utility model aims to provide a display module, aiming to solve the technical problem of lamp shadow existing in the existing display module.

[0005] The present application provides a display module, which includes a light board and a first polarizer distributed along a first direction, the light board includes a circuit board and a plurality of lamp beads, the plurality of lamp beads are installed at intervals on a side surface of the circuit board, the first polarizer is arranged on a side of the circuit board close to the lamp beads along the first direction, a first light diffusion layer is provided on the surface of the first polarizer, and the projection of the first light diffusion layer in the first direction covers the projection of the plurality of lamp beads in the first direction.

[0006] In one embodiment, the first light diffusion layer is light diffusion ink or light diffusion paint.

[0007] In one embodiment, the first light diffusion layer is printed on the surface of the first polarizer.

[0008] In one embodiment, the thickness of the first light diffusion layer is 5 μm to 20 μm.

[0009] In one embodiment, the mesh number of the first light diffusion layer is 300-500.

[0010] In one embodiment, a plurality of second light diffusion layers are provided on the surface of the first light diffusion layer or on the surface of the first polarizer away from the first light diffusion layer, and the projection of each second light diffusion layer in the first direction covers the projection of one lamp bead in the first direction.

[0011] In one embodiment, the number of the second light diffusion layers is the same as the number of the lamp beads and corresponds one to one.

[0012] In one embodiment, the first light diffusion layer is printed on the surface of the first polarizer or the first light diffusion layer.

[0013] In one embodiment, the second light diffusion layer is light diffusion ink or light diffusion paint.

[0014] In one embodiment, the thickness of the second light diffusion layer is 5 μm to 20 μm.

[0015] In one embodiment, the mesh number of the second light diffusion layer is 300-500.

[0016] In one of the embodiments, the display module further includes a bracket having a mounting groove extending through the first direction, and the light board and the first polarizer are installed in the mounting groove.

[0017] In one of the embodiments, the display module further includes a second polarizer, and the second polarizer is located on a side of the first polarizer away from the light board in the first direction.

[0018] In one embodiment, the display module also includes a conductive glass substrate under the liquid crystal display screen and a conductive glass substrate on the liquid crystal display screen, wherein the conductive glass substrate under the liquid crystal display screen and the conductive glass substrate on the liquid crystal display screen are located between the first polarizer and the second polarizer, and the conductive glass substrate under the liquid crystal display screen is arranged closer to the first polarizer than the conductive glass substrate on the liquid crystal display screen.

[0019] In one embodiment, the display module further includes a flexible circuit board, which is electrically connected to the conductive glass substrate under the liquid crystal display screen and the conductive glass substrate on the liquid crystal display screen, respectively, and the flexible circuit board is located next to the conductive glass substrate under the liquid crystal display screen.

[0020] The beneficial effect of the display module provided by the utility model is that the light emitted by the multiple lamp beads on the circuit board passes through the first light diffusion layer at the same time when passing through the first polarizer; the first light diffusion layer scatters the light emitted by the multiple lamp beads as point light sources, so that the light distribution is more evenly diffused, and the lamp eyes are weakened, thereby solving the technical problem that the light emitted by the existing display module is easy to form lamp shadows, thereby achieving a uniform display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of the structure of a display module provided by an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the display module in the comparative example.

[0024] Among them, the reference numerals in the figure are:

[0025] Z, first direction;

[0026] 10. Diffusion surface; 20. Double-sided tape;

[0027] 100, lamp board; 110, circuit board; 120, lamp beads;

[0028] 200, a first polarizer; 210, a first light diffusion layer; 220, a second light diffusion layer;

[0029] 310, a second polarizer; 320, a conductive glass substrate below the liquid crystal display; 330, a conductive glass substrate above the liquid crystal display;

[0030] 410, bracket; 411, mounting slot; 420, flexible circuit board. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Combination Figure 1 The present application provides a display module. The display module includes a light board 100 and a first polarizer 200 distributed along a first direction Z, the light board 100 includes a circuit board 110 and a plurality of lamp beads 120, the plurality of lamp beads 120 are installed on a side surface of the circuit board 110 at intervals, the first polarizer 200 is arranged on a side of the circuit board 110 close to the lamp beads 120 along the first direction Z, a first light diffusion layer 210 is arranged on the surface of the first polarizer 200, and the projection of the first light diffusion layer 210 in the first direction Z covers the projection of the plurality of lamp beads 120 in the first direction Z.

[0037] Among them, the light emitted by the multiple lamp beads 120 on the circuit board 110 passes through the first light diffusion layer 210 at the same time when passing through the first polarizer 200. The first light diffusion layer 210 scatters the light emitted by the multiple lamp beads 120 as point light sources, so that the light distribution is more evenly diffused, the lamp eyes are weakened, and a uniform display effect is achieved. At the same time, the user's eyes do not need to frequently adjust to adapt to the different brightness positions of the display module, thereby reducing visual fatigue. The first light diffusion layer 210 covers the multiple lamp beads 120 in the first direction Z to avoid missing a certain lamp bead 120 and causing the appearance of lamp shadows.

[0038] In the comparative example, the combination Figure 2 If a diffusion film 10 is set between the first polarizer 200 and the lamp bead 120 to achieve the effect of light diffusion. Since the cost of the diffusion film 10 is higher than the cost of the first light diffusion layer 210, the cost of the display module in the comparative example is relatively high. At the same time, since the thickness and volume of the diffusion film 10 are also greater than the thickness and volume of the first light diffusion layer 210, the thickness of the display module will increase. As a separate component, the diffusion film 10 needs to be installed on the first polarizer 200 using a connecting structure. For example, the double-sided tape 20 is used to connect the diffusion film 10 to the first polarizer 200. On the one hand, it requires additional bonding operations, resulting in more assembly steps for the display module and low assembly efficiency. On the other hand, the diffusion film 10 is bonded and fixed, and the stability needs to be improved. At the same time, glue is consumed, and the cost is relatively high.

[0039] In some embodiments, in combination Figure 1 The display module further includes a bracket 410, and the bracket 410 has a mounting groove 411 that penetrates along the first direction Z, and the lamp board 100 and the first polarizer 200 are installed in the mounting groove 411. The bracket 410 provides a stable support frame for the lamp board 100 and the first polarizer 200, improves the position stability of the lamp board 100 and the first polarizer 200, reduces the performance degradation or damage of the display module caused by loosening or displacement of the lamp board 100 and the first polarizer 200, ensures that the lamp beads 120 stably emit light along the first direction Z, and ensures that in the projection of the first direction Z, the first light diffusion layer 210 covers all the lamp beads 120, and avoids the light center of the uncovered lamp beads 120 not passing through the first light diffusion layer 210 to cause lamp shadows.

[0040] Furthermore, the mounting groove 411 is open in the first direction Z, which is convenient for the assembly of the lamp board 100 and the first polarizer 200, and for the light emitted by the plurality of lamp beads 120 to be emitted through the first light diffusion layer 210 and the first polarizer 200. At the same time, the groove wall of the mounting groove 411 is arranged around the lamp board 100 and the first polarizer 200 to avoid light leakage from the side.

[0041] Specifically, the bracket 410 is a plastic shell, which helps to reduce the weight of the entire display module and facilitates transportation and installation. The bracket 410 of the plastic shell can maintain stable performance under various environmental conditions, is not easily affected by chemical corrosion, can effectively prevent current leakage and short circuit, and improve the safety of the display module. In addition, the cost of the plastic shell is low, which is conducive to reducing the manufacturing cost of the display module.

[0042] It is understood that in other embodiments, the bracket 410 is a metal shell or a ceramic shell. For example, the bracket 410 is an aluminum alloy shell, a steel alloy shell, and a copper alloy shell, which are not specifically limited here.

[0043] In some embodiments, in combination Figure 1 The first light diffusion layer 210 is light diffusion ink or light diffusion paint. The light diffusion ink or paint can effectively scatter the light emitted by the multiple lamp beads 120 on the circuit board 110, making the light distribution more uniform and effectively diluting the lamp eyes, thereby achieving a uniform display effect. Due to the uniform diffusion of light, the user's eyes do not need to frequently adjust to adapt to the different brightness positions of the display module, thereby reducing visual fatigue.

[0044] In addition, the light diffusion ink or light diffusion paint has a lower cost, and its thickness and volume are much smaller than the diffusion film 10, thereby reducing the overall cost of the display module, so that the display module can be designed to be lighter and thinner. The light diffusion ink or light diffusion paint can be directly coated on the surface of the first polarizer 200 without the need for additional connection structures or bonding operations, simplifying the assembly process and improving assembly efficiency.

[0045] In some embodiments, in combination Figure 1 , the first light diffusion layer 210 is integrally formed with the first polarizer 200, and the first light diffusion layer 210 is printed and set on the surface of the first polarizer 200. Compared with spraying, electroplating, physical deposition or 3D printing and other setting methods, the first light diffusion layer 210 is directly printed on the surface of the first polarizer 200, and the material cost is greatly reduced. In addition, the printing setting process is mature and highly accurate, which can ensure the uniformity and consistency of the first light diffusion layer 210 on the first polarizer 200. The printing setting process is simple and fast, which improves production efficiency and reduces processing difficulty. The first light diffusion layer 210 adopts a printing process to achieve close fit on the surface of the first polarizer 200, which can better play its light scattering and homogenization role and improve the display effect.

[0046] Since the first light diffusion layer 210 is directly printed on the surface of the first polarizer 200, the size, thickness and pattern of the first light diffusion layer 210 can be adjusted according to specific needs, the overall thickness of the first light diffusion layer 210 can be flexibly adjusted, and the same first light diffusion layer 210 can be flexibly adjusted to have different thicknesses at different positions to meet different display effect requirements.

[0047] It can be understood that in other embodiments, the first light diffusion layer 210 is integrally formed with the first polarizer 200 by spraying, electroplating, physical deposition or 3D printing.

[0048] In one embodiment, in combination Figure 1 , the thickness of the first light diffusion layer 210 is 5μm to 20μm. When the thickness of the first light diffusion layer 210 is less than 5μm, its light transmittance is good but its uniformity is average. When the thickness of the first light diffusion layer 210 increases to 5μm to 20μm, it can effectively improve the uniformity of light while maintaining high light transmittance, making the light distribution more uniform, and still maintaining high brightness, avoiding the reduction of brightness caused by excessive diffusion of light, and improving the overall quality of the display effect. When the thickness of the first light diffusion layer 210 is greater than 20μm, its light uniformity is good but its transmittance is poor, which is not conducive to improving the brightness of the display module.

[0049] In one embodiment, in combination Figure 1 , the mesh number of the first light diffusion layer 210 is 300 to 500. Due to the large number of meshes (300 to 500 meshes), the first light diffusion layer 210 can effectively and evenly scatter the light emitted by the point light source (such as the lamp beads 120 in the display module), avoiding the glare caused by excessive concentration of light, thereby improving the viewing comfort of the display module. The first light diffusion layer 210 can make the light emitted by the display module softer and more uniform, reducing the problem of poor display effect caused by uneven light. In addition, a higher number of meshes also means a smaller sieve size, which can further refine the scattering effect of light and make the display effect more delicate and clear. Although the higher the number of meshes, the better the scattering effect of the first light diffusion layer 210, the cost will also increase accordingly. Therefore, the mesh is limited to be less than or equal to 500, which not only meets the display effect requirements but also has a good cost-effective mesh number.

[0050] For example, in situations where higher brightness and clarity are required, a first light diffusion layer 210 with a higher mesh count (e.g., 400-500 meshes) can be selected; and in situations where lower brightness and softer light are required, a first light diffusion layer 210 with a lower mesh count (e.g., 300-400 meshes) can be selected.

[0051] In the aforementioned embodiment, the first light diffusion layer 210 can be disposed on a surface of the first polarizer 200 close to the light board 100, or on a surface of the first polarizer 200 away from the light board 100, which is not specifically limited here.

[0052] Optionally, the first light diffusion layer 210 is disposed on a side surface of the first polarizer 200 close to the light board 100, and the first light diffusion layer 210 can diffuse the light emitted by the lamp beads 120 more directly and effectively. Since light undergoes reflection, refraction and other processes during propagation, arranging the first light diffusion layer 210 close to the lamp beads 120 can reduce light loss, improve light utilization, and ensure that the light is more uniform during the diffusion process, thereby improving the overall uniformity of the display effect. The first light diffusion layer 210 disposed close to the light board 100 can more effectively control the propagation direction of light, and through light diffusion, reduce the possibility of light directly shining on the viewer's eyes and reduce glare. At the same time, since the light is evenly diffused, the shadows caused by light shining on objects can also be reduced, thereby improving viewing comfort.

[0053] In one embodiment, in combination Figure 1 The first light diffusion layer 210 is arranged on the entire side surface of the first polarizer 200, realizing the design of maximizing the area of ​​the first light diffusion layer 210, and being able to fully diffuse all the light emitted from the light board 100, avoiding the problem of excessive or weak light in local areas, and significantly improving the uniformity and consistency of the displayed image. Whether it is brightness, contrast or color saturation, a more balanced performance can be obtained, thereby improving the overall display effect. At the same time, the first light diffusion layer 210 with a full-surface design can simplify the design process, reduce the need for customization, easily realize automation and standardization, improve production efficiency and reduce costs.

[0054] In one embodiment, in combination Figure 1 , a plurality of second light diffusion layers 220 are arranged on the surface of the first light diffusion layer 210 or the surface of the first polarizer 200 away from the first light diffusion layer 210, and the projection of each second light diffusion layer 220 in the first direction Z covers the projection of a lamp bead 120 in the first direction Z. Since the illumination is strongest at the position directly opposite the lamp bead 120 in the first direction Z, and the illumination is weakest at the middle position between two adjacent lamp beads 120, the display module may still have the problem of uneven brightness. Each second light diffusion layer 220 covers the projection of a lamp bead 120, and diffuses the light for each position where a bright spot may be generated, ensuring that the light emitted by the lamp bead 120 can be effectively diffused and homogenized, thereby improving the uniformity of the overall display effect.

[0055] Specifically, combined Figure 1 The number of the second light diffusion layers 220 is the same as the number of the lamp beads 120, and they correspond one to one. Since each lamp bead 120 has a corresponding second light diffusion layer 220, it can ensure that the light emitted by each lamp bead 120 is effectively diffused and distributed, avoiding the situation of light overlap or loss, thereby improving the overall light uniformity and display effect.

[0056] Furthermore, each second light diffusion layer 220 is customized for a specific lamp bead 120, and the shape and thickness of the second light diffusion layer 220 can be precisely designed according to the characteristics of the lamp bead 120 (such as brightness, color temperature, light-emitting angle, etc.) to achieve the best light diffusion effect and visual effect, reduce the glare caused by direct light shining on the viewer's eyes, and avoid shadows caused by light shining on objects, thereby improving viewing comfort.

[0057] Specifically, the second light diffusion layer 220 is integrally formed and arranged on the surface of the first light diffusion layer 210, and the first light diffusion layer 210 and the second light diffusion layer 220 can be directly integrally formed and processed in the same processing step and on the same side of the first polarizer 200, without multiple processing and flipping steps of the first polarizer 200, thereby improving production efficiency. Since the first light diffusion layer 210 and the second light diffusion layer 220 are integrally formed, the optical interface between the two is smoother, reducing the reflection and refraction loss of light on the interface, helping to optimize the light diffusion effect and improve the clarity and uniformity of the display image.

[0058] Specifically, the second light diffusion layer 220 is integrally formed and arranged on the surface of the first polarizer 200 away from the first light diffusion layer 210, and the first light diffusion layer 210 and the second light diffusion layer 220 are respectively located on both sides of the first polarizer 200, so as to reduce the optical interference between the first light diffusion layer 210 and the second light diffusion layer 220, help maintain the independence of the first light diffusion layer 210 and the second light diffusion layer 220, and facilitate the individual regulation of the thickness and shape of the first light diffusion layer 210 and the second light diffusion layer 220. The second light diffusion layer 220 is directly integrally formed on the surface of the first polarizer 200, ensuring that it is firmly attached to the first polarizer 200, which helps to reduce the problem of falling off or displacement that may occur during use, and improves the durability and reliability of the product.

[0059] In one embodiment, in combination Figure 1 , the first light diffusion layer 210 is printed and set on the surface of the first polarizer 200 or the first light diffusion layer 210. Compared with spraying, electroplating, physical deposition or 3D printing and other setting methods, the second light diffusion layer 220 is processed by printing in one piece, and the material cost is greatly reduced. In addition, the printing setting process is mature and highly accurate, which can ensure the uniformity and consistency of the second light diffusion layer 220 and has high production efficiency. The second light diffusion layer 220 adopts a printing process to achieve close contact with the surface of the first light diffusion layer 210 or the first polarizer 200, which can better play its light scattering and homogenization role and improve the display effect.

[0060] It can be understood that in other embodiments, the second light diffusion layer 220 is formed integrally with the first polarizer 200 or the first light diffusion layer 210 by spraying, electroplating, physical deposition or 3D printing.

[0061] In one embodiment, the second light diffusion layer 220 is light diffusion ink or light diffusion paint. The light diffusion ink or paint can effectively scatter the light emitted by the multiple lamp beads 120 on the circuit board 110, so that the light distribution is more uniform, and the lamp eyes are effectively weakened, thereby achieving a uniform display effect. In addition, the cost of light diffusion ink or light diffusion paint is lower, and its thickness and volume are much smaller than the diffusion film 10, thereby reducing the overall cost of the display module, so that the display module can be designed to be lighter and thinner.

[0062] In one embodiment, the thickness of the second light diffusion layer 220 is 5 μm to 20 μm. When the thickness of the second light diffusion layer 220 is increased to 5 μm to 20 μm, it can effectively improve the uniformity of the light while maintaining a high light transmittance, making the light distribution more uniform, and still maintaining a high brightness, avoiding the reduction in brightness caused by excessive light diffusion, and improving the overall quality of the display effect. When the thickness of the second light diffusion layer 220 is greater than 20 μm, although the light uniformity is good, the transmittance is poor, which is not conducive to improving the brightness of the display module. When the thickness of the second light diffusion layer 220 is less than 5 μm, although the light transmittance is good, the uniformity is average.

[0063] In one embodiment, the mesh number of the second light diffusion layer 220 is 300 to 500. The second light diffusion layer 220 can effectively evenly scatter the light emitted by the point light source to avoid the glare caused by excessive concentration of light, thereby improving the viewing comfort of the display module. The second light diffusion layer 220 can make the light emitted by the display module softer and more uniform, reducing the problem of poor display effect caused by uneven light. In addition, a higher mesh number also means a smaller sieve size, which can further refine the scattering effect of light and make the display effect more delicate and clear. Although the higher the mesh number, the better the scattering effect of the second light diffusion layer 220, the cost will also increase accordingly. Therefore, the mesh number is limited to less than or equal to 500, which not only meets the display effect requirements but also has a good cost-effective mesh number.

[0064] In some embodiments, in combination Figure 1The display module further includes a second polarizer 310, which is located on a side of the first polarizer 200 away from the light board 100 in the first direction Z. The first polarizer 200 and the second polarizer 310 work together to optimize the display effect. The second polarizer 310 is located on a side of the first polarizer 200 away from the light board 100, which can effectively reduce the interference of ambient light on the display screen. Through the joint action of the first polarizer 200 and the second polarizer 310, the contrast of the display screen can be enhanced.

[0065] In one embodiment, in combination Figure 1 The display module further includes a conductive glass substrate 320 under the liquid crystal display screen and a conductive glass substrate 330 on the liquid crystal display screen. The conductive glass substrate 320 under the liquid crystal display screen and the conductive glass substrate 330 on the liquid crystal display screen are located between the first polarizer 200 and the second polarizer 310. The conductive glass substrate 320 under the liquid crystal display screen is arranged closer to the first polarizer 200 than the conductive glass substrate 330 on the liquid crystal display screen. The conductive glass substrate 320 under the liquid crystal display screen is arranged closer to the first polarizer 200, which can ensure that the light directly acts on the pixel points on the conductive glass substrate 320 under the liquid crystal display screen after passing through the first polarizer 200, reducing the loss and interference of the light during the transmission process, ensuring that the light received by the pixel points is more uniform, improving the accuracy of pixel control, and making the display picture more delicate and clear. The close arrangement between the conductive glass substrate 320 under the liquid crystal display screen and the conductive glass substrate 330 on the liquid crystal display screen can reduce the displacement or deformation caused by temperature changes or mechanical vibrations, and enhance the overall stability of the display module.

[0066] Specifically, combined Figure 1 , the display module also includes a flexible circuit board 420, which is electrically connected to the conductive glass substrate 320 under the liquid crystal display screen and the conductive glass substrate 330 on the liquid crystal display screen, respectively, and the flexible circuit board 420 is located beside the conductive glass substrate 320 under the liquid crystal display screen. In other words, the projection of the flexible circuit board 420 in the first direction Z does not overlap with the multiple lamp beads 120. The flexible circuit board 420 can be bent and folded, so that it can fit closely to the side of the conductive glass substrate 320 under the liquid crystal display screen, thereby greatly saving space inside the display module. This layout enables the display module to achieve a more compact and thin design while maintaining high performance, meeting the needs of miniaturization and lightweight electronic products.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A display module, characterized in that: The display module includes a light board and a first polarizer distributed along a first direction, the light board includes a circuit board and a plurality of lamp beads, the plurality of lamp beads are installed at intervals on a side surface of the circuit board, the first polarizer is arranged along the first direction on a side of the circuit board close to the lamp beads, a first light diffusion layer is provided on the surface of the first polarizer, and the projection of the first light diffusion layer in the first direction covers the projection of the plurality of lamp beads in the first direction.

2. The display module according to claim 1, characterized in that: The first light diffusion layer is light diffusion ink or light diffusion paint; And / or, the first light diffusion layer is printed on the surface of the first polarizer.

3. The display module according to claim 1, characterized in that: The thickness of the first light diffusion layer is 5 μm to 20 μm; and / or the mesh number of the first light diffusion layer is 300 to 500.

4. The display module according to claim 1, characterized in that: A plurality of second light diffusion layers are disposed on the surface of the first light diffusion layer or on the surface of the first polarizer away from the first light diffusion layer, and the projection of each second light diffusion layer in the first direction covers the projection of one lamp bead in the first direction.

5. The display module according to claim 4, characterized in that: The number of the second light diffusion layers is the same as the number of the lamp beads and corresponds one to one.

6. The display module according to claim 4, characterized in that: The first light diffusion layer is printed on the surface of the first polarizer or the first light diffusion layer, and / or the second light diffusion layer is light diffusion ink or light diffusion paint.

7. The display module according to claim 4, characterized in that: The thickness of the second light diffusion layer is 5 μm to 20 μm; and / or the mesh number of the second light diffusion layer is 300 to 500.

8. The display module according to claim 1, characterized in that: The display module also includes a bracket, the bracket has a mounting groove penetrating along the first direction, and the light board and the first polarizer are installed in the mounting groove.

9. The display module according to any one of claims 1 to 8, characterized in that: The display module further includes a second polarizer, which is located on a side of the first polarizer away from the light board in the first direction.

10. The display module according to claim 9, characterized in that: The display module further includes a lower conductive glass substrate of the liquid crystal display screen and an upper conductive glass substrate of the liquid crystal display screen, wherein the lower conductive glass substrate of the liquid crystal display screen and the upper conductive glass substrate of the liquid crystal display screen are located between the first polarizer and the second polarizer, and the lower conductive glass substrate of the liquid crystal display screen is arranged closer to the first polarizer than the upper conductive glass substrate of the liquid crystal display screen; The display module also includes a flexible circuit board, which is electrically connected to the lower conductive glass substrate of the liquid crystal display screen and the upper conductive glass substrate of the liquid crystal display screen respectively, and the flexible circuit board is located beside the lower conductive glass substrate of the liquid crystal display screen.

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